EPA 608
EPA 608 CORE UNIVERSAL EXAM QUESTIONS AND ANSWERS
Refrigeration technicians who violate the Clean Air Act can: -
correct answer D) all of the above.
After 1995, any supplies of CFC refrigerant to service existing
units in the USA can only come from: - correct answer A) recovery
and recycling.
Refrigerant that is recovered can be returned to: - correct answer A)
the same system or other systems owned by the same person
without restriction.
Refrigerant can not be called "reclaimed" unless it: - correct answer
B) has been chemically analyzed and the refrigerant meets the
ARI-700 purity standard.
,EPA 608
The EPA can require a technician to demonstrate their ability to
perform proper procedures for recovering and/or recycling
refrigerant. Failure to demonstrate competency can result in: -
correct answer A) revocation of the technician's certification.
What characteristic(s) of CFCs make them more likely to reach
the stratosphere than most other compounds containing
chlorine? - correct answer A) Refrigerants that contain chlorine but
not hydrogen are so stable that they do not break down in the
lower atmosphere after being released. The chlorine or
bromine reacts with ozone, causing it to change back to oxygen,
thus destroying the ozone layer.
A system is considered dehydrated when: - correct answer A) the
vacuum indicator shows you have reached and held the
required finished vacuum.
Disposable refrigerant containers are used for _______
refrigerant. - correct answer C) virgin
Which refrigerant is an HCFC? - correct answer A) R-124
, EPA 608
What statement is true about an azeotropic refrigerant
mixture? - correct answer D) It is a mixture that acts like a single-
component refrigerant over its entire range.
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons
(HCFCs) have which of the following in common? - correct answer D)
They must be recovered before opening or disposing of
appliances.
To scrap a disposable cylinder, the internal cylinder pressure
should be reduced to at least: - correct answer A) 0 psig.
Manifold gauge sets are often color coded, when this is done,
the high pressure gauge is color coded: - correct answer A) red.
In general, blended refrigerants should be charged: - correct answer
C) as a liquid.
Blended refrigerants leak from a system: - correct answer B) in
uneven amounts due to different vapor pressures.
Which of the following gases help form the earth's protective
shield? - correct answer D) Stratospheric Ozone
EPA 608 CORE UNIVERSAL EXAM QUESTIONS AND ANSWERS
Refrigeration technicians who violate the Clean Air Act can: -
correct answer D) all of the above.
After 1995, any supplies of CFC refrigerant to service existing
units in the USA can only come from: - correct answer A) recovery
and recycling.
Refrigerant that is recovered can be returned to: - correct answer A)
the same system or other systems owned by the same person
without restriction.
Refrigerant can not be called "reclaimed" unless it: - correct answer
B) has been chemically analyzed and the refrigerant meets the
ARI-700 purity standard.
,EPA 608
The EPA can require a technician to demonstrate their ability to
perform proper procedures for recovering and/or recycling
refrigerant. Failure to demonstrate competency can result in: -
correct answer A) revocation of the technician's certification.
What characteristic(s) of CFCs make them more likely to reach
the stratosphere than most other compounds containing
chlorine? - correct answer A) Refrigerants that contain chlorine but
not hydrogen are so stable that they do not break down in the
lower atmosphere after being released. The chlorine or
bromine reacts with ozone, causing it to change back to oxygen,
thus destroying the ozone layer.
A system is considered dehydrated when: - correct answer A) the
vacuum indicator shows you have reached and held the
required finished vacuum.
Disposable refrigerant containers are used for _______
refrigerant. - correct answer C) virgin
Which refrigerant is an HCFC? - correct answer A) R-124
, EPA 608
What statement is true about an azeotropic refrigerant
mixture? - correct answer D) It is a mixture that acts like a single-
component refrigerant over its entire range.
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons
(HCFCs) have which of the following in common? - correct answer D)
They must be recovered before opening or disposing of
appliances.
To scrap a disposable cylinder, the internal cylinder pressure
should be reduced to at least: - correct answer A) 0 psig.
Manifold gauge sets are often color coded, when this is done,
the high pressure gauge is color coded: - correct answer A) red.
In general, blended refrigerants should be charged: - correct answer
C) as a liquid.
Blended refrigerants leak from a system: - correct answer B) in
uneven amounts due to different vapor pressures.
Which of the following gases help form the earth's protective
shield? - correct answer D) Stratospheric Ozone
